查看防火墻狀態(tài) systemctl status firewalld 啟動(dòng)防火墻 systemctl start firewalld

停止某項(xiàng)服務(wù)，這里舉例停止防火墻 systemctl stop firewalld

查看防火墻已經(jīng)開(kāi)放的端口 firewall-cmd --list-port

添加開(kāi)放指定防火墻 firewall-cmd --zone=public --add-port=這里是需要開(kāi)啟的端口號(hào)/tcp --permanent

重新加載防火墻 firewall-cmd --reload